DEPARTMENT OF HOMELAND SECURITY

Data as of 2026-11-08
BGP inherited
This organisation
Netblocks37 · 79,872 IPv4 addresses
IPv6 3 prefixes (largest 2600:400::/32)
Also registered under this name 605 netblocks across 152 separate records
Record ID269890389
RegistryBGP
Customerssee who runs inside this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 39 shared RIR contact/maintainer handles
Registry names 4 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

IP Ranges (37)

⬇ export CSV
CIDR Org name Registry Status Confidence
64.69.48.0/20 DEPARTMENT OF HOMELAND SECURITY ARIN DIRECT ALLOCATION ● high
161.214.0.0/18 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.0.0/16 DEPARTMENT OF HOMELAND SECURITY ARIN DIRECT ALLOCATION ● high
161.214.7.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.8.0/22 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.9.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.10.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.17.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.18.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.64.0/19 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.96.0/21 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.120.0/21 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.122.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.123.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.126.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.127.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.128.0/17 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.182.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
161.214.183.0/24 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
173.255.48.0/21 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
173.255.48.0/20 DEPARTMENT OF HOMELAND SECURITY ARIN DIRECT ALLOCATION ● high
173.255.56.0/21 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
208.73.184.0/24 Department of Homeland Security BGP ANNOUNCED ● high
208.73.184.0/21 Department of Homeland Security ARIN DIRECT ALLOCATION ● high
208.73.185.0/24 Department of Homeland Security BGP ANNOUNCED ● high
208.73.186.0/24 Department of Homeland Security BGP ANNOUNCED ● high
208.73.187.0/24 Department of Homeland Security BGP ANNOUNCED ● high
208.73.188.0/24 Department of Homeland Security BGP ANNOUNCED ● high
208.73.189.0/24 Department of Homeland Security BGP ANNOUNCED ● high
208.73.190.0/24 Department of Homeland Security BGP ANNOUNCED ● high
208.73.191.0/24 Department of Homeland Security BGP ANNOUNCED ● high
216.81.80.0/21 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
216.81.80.0/20 DEPARTMENT OF HOMELAND SECURITY ARIN DIRECT ALLOCATION ● high
216.81.88.0/21 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
2600:400::/32 DEPARTMENT OF HOMELAND SECURITY BGP ANNOUNCED ● high
2620:112:5004::/48 Department of Homeland Security BGP ANNOUNCED ● high
2620:112:5005::/48 Department of Homeland Security BGP ANNOUNCED ● high

IPv6 ranges (3)

CIDR
2600:400::/32
2620:112:5004::/48
2620:112:5005::/48

Footprint over time

20 weekly snapshots · JSON
39 +14 netblocks since 2026-07-05
2026-07-05 peak 39 2026-11-08

Network trust

what's this?
RPKI hygiene: D how networks compare →
33.3% of checked blocks have valid RPKI ROA coverage (13 of 39)
No discrepancies found among checked blocks.

NIC Handles

AHI54-ARIN AS15147 AS396973 BEALL59-ARIN BIGGS5-ARIN CORLI-ARIN DELON43-ARIN DELON43-ARIN DELON43-ARIN DELON43-ARIN DELON43-ARIN DHS-37 +27 more